输入根据用户的输入信息，建立二叉树的二叉链表。

利用递归和非递归实现二叉树的中序遍历，利用队列实现二叉树的层次遍历。

-Enter the information based on user input, the establishment of binary binary tree list. Recursive and non recursive implementation of binary tree traversal, the use of queues to achieve the level of binary tree traversal.